The type of error in the given sentence above is option C. It contains no error. The given sentence's structure is correctly written and the objects of the sentence are also parallel. The word "swimming" in the sentence is a gerund and is not used a verb. Therefore, "to do homework and swimming" is correct.
Your answer is D.
It would not be A or B because Margot was not talking. It said “I said,” which supports my answer.
Hope this helps and ha e a nice day/night!!!
A time i experience success
C trageties seemed out of place